Hmm never heard about them using the isuzu framework, but that would be cool. I know Gilbert got to do one of their consumer research surveys and said that it might be cool, but probably gonna be IFS IRS and lame for wheelin. As for the motor the I5 and I4 are both derived from the 4200 I6 found in the trailblazer and ascender. Its a modular motor, they just add and remove cylinders. the I5 should be a cool motor and would work nice in that chop top H3, but they told him that the I4 would be goin in the convertible and the I5 would only be available in the hard top versions. Hopefully they took his, and everybody elses, advice and decided to offer the 5 in both models.
Dallas
EDIT: where does it say something about an isuzu frame, in the article on GMs media page it says they borrowed the frame architecture from the GM midsize trucks. Am I missing something here?